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    DeepSeek: R1 0528

    deepseek/deepseek-r1-0528

    Created May 28, 2025163,840 context
    $0.40/M input tokens$1.75/M output tokens

    May 28th update to the original DeepSeek R1 Performance on par with OpenAI o1, but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active in an inference pass.

    Fully open-source model.

    Providers for R1 0528

    OpenRouter routes requests to the best providers that are able to handle your prompt size and parameters, with fallbacks to maximize uptime.

    Performance for R1 0528

    Compare different providers across OpenRouter

    Apps using R1 0528

    Top public apps this week using this model

    Recent activity on R1 0528

    Total usage per day on OpenRouter

    Uptime stats for R1 0528

    Uptime stats for R1 0528 across all providers

    Sample code and API for R1 0528

    OpenRouter normalizes requests and responses across providers for you.

    OpenRouter provides an OpenAI-compatible completion API to 400+ models & providers that you can call directly, or using the OpenAI SDK. Additionally, some third-party SDKs are available.

    In the examples below, the OpenRouter-specific headers are optional. Setting them allows your app to appear on the OpenRouter leaderboards.

    Using third-party SDKs

    For information about using third-party SDKs and frameworks with OpenRouter, please see our frameworks documentation.

    See the Request docs for all possible fields, and Parameters for explanations of specific sampling parameters.